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Are you looking for a good Ni-MH Rechargeable Battery from the internet in your daily life? If you are sure you really need one, here we recommend you a fine product. PISEN Fast Charger and Rechargeable Ni-MH AA Rechargeable Battery Set (2500mAh) for you to use with your digital camera, CD player, MP3 / MP4 player, walkman, PDAs, electronic toys and other cool devices with AA battery power. This Ni-MH Rechargeable Battery is designed perfectly. We offer this AA Rechargeable Battery in order to meet customers' different needs. What do you expect from a battery? These batteries will allow you to get incredible runtime. A protection circuit is attached to the battery to ensure that you do not overcharge or over discharge the battery. To save you a lot of trouble, try this 1.2V Rechargeable Battery!

PISEN Fast Charger and Ni-MH Rechargeable Battery Set (2500mAh) for you to use with your digital camera, CD player, MP3 / MP4 player, walkman, PDAs, electronic toys and other cool devices with AA battery power

This Ni-MH Rechargeable Battery is designed perfectly

Battery and charger red leds with single times each second glitters, full of bright red long after

Folding plug which makes it convenient to be carried about

4 (Ni-MH battery) AA batteries and AAA batteries are both compatible

Details:

This Ni-MH Rechargeable Battery is designed perfectly. We offer this AA Rechargeable Battery in order to meet customers' different needs

A protection circuit is attached to the battery to ensure that you do not overcharge or over discharge the battery

To save you a lot of trouble, try this 1.2V Rechargeable Battery and they will not let you down

4 Tips to Extend Your Battery Life:

Battery Memory - When I first got my new cellphone, my friend recommended to fully drain the battery before recharging it. His reasoning was connected to the idea of battery memory. Allowing the battery to fully discharge then recharging to max, supposedly gives you the complete battery capacity. Otherwise, if you simply charged from the half way point to max battery capacity, the battery would treat the half way point as the empty point, thus cutting your battery capacity in half

Battery Calibration - There are some benefits to fully discharging your battery periodically, for laptops this can be especially important. If you start to notice your battery meter becoming more and more inaccurate, it may be time for some battery calibration. Allow your battery completely drain, then charge until the battery is full again. This will calibrate your battery giving you more accurate readings

Consequences of Heat - Another enemy of battery life is heat. If you were to leave your laptop plugged in and running for a year, you should expect the battery capacity to be anywhere between 60% to 80% of it's original max capacity. This is why people that use their laptops as desktop replacements will notice greatly reduced battery life performance after one year of use. This issue can be resolved by removing the battery while using a corded power source

Battery Storage - If you don't plan on using your battery for prolonged periods of time, then you'll want to reduce the charge level to 40% and place the battery in the fridge (not freezer). Storing the battery at 100% charge level applies unnecessary stress and can cause internal corrosion. On the other hand, if the charge is too low, the battery can become permanently unusable, due to battery self discharge

Normally, new rechargeable batteries have to be charged before use; newer low self-discharge batteries hold their charge for many months, and are supplied charged to about 70% of their rated capacity.

Grid energy storage applications use rechargeable batteries for load leveling, where they store electric energy for use during peak load periods, and for renewable energy uses, such as storing power generated from photovoltaic arrays during the day to be used at night. By charging batteries during periods of low demand and returning energy to the grid during periods of high electrical demand, load-leveling helps eliminate the need for expensive peaking power plants and helps amortize the cost of generators over more hours of operation.

The US National Electrical Manufacturers Association has estimated that U.S. demand for rechargeable batteries is growing twice as fast as demand for nonrechargeables

Charging and discharging:

Diagram of the charging of a secondary cell battery

During charging, the positive active material is oxidized, producing electrons, and the negative material is reduced, consuming electrons. These electrons constitute the current flow in the external circuit. The electrolyte may serve as a simple buffer for ion flow between the electrodes, as in lithium-ion and nickel-cadmium cells, or it may be an active participant in the electrochemical reaction, as in lead-acid cells.

The energy used to charge rechargeable batteries usually comes from a battery charger using AC mains electricity. Chargers take from a few minutes (rapid chargers) to several hours to charge a battery. Most batteries are capable of being charged far faster than simple battery chargers are capable of; there are chargers that can charge consumer sizes of NiMH batteries in 15 minutes. Fast charges must have multiple ways of detecting full charge (voltage, temperature, etc.) to stop charging before onset of harmful overcharging.

Rechargeable multi-cell batteries are susceptible to cell damage due to reverse charging if they are fully discharged. Fully integrated battery chargers that optimize the charging current are available.

Flow batteries, used for specialised applications, are recharged by replacing the electrolyte liquid.

Battery manufacturers' technical notes often refer to VPC; this is volts per cell, and refers to the individual secondary cells that make up the battery. For example, to charge a 12 V battery (containing 6 cells of 2 V each) at 2.3 VPC requires a voltage of 13.8 V across the battery's terminals.

Non-rechargeable alkaline and zinc-carbon cells output 1.5V when new, but this voltage gradually drops with use. Most NiMH AA and AAA batteries rate their cells at 1.2 V, and can usually be used in equipment designed to use alkaline batteries up to an end-point of 0.9 to 1.2V.

Reverse charging:

Subjecting a discharged cell to a current in the direction which tends to discharge it further, rather than charge it, is called reverse charging; this damages cells. Reverse charging can occur under a number of circumstances, the two most common being:

When a battery or cell is connected to a charging circuit the wrong way round.

When a battery made of several cells connected in series is deeply discharged.

When one cell completely discharges ahead of the rest, the live cells will apply a reverse current to the discharged cell ("cell reversal"). This can happen even to a "weak" cell that is not fully discharged. If the battery drain current is high enough, the weak cell's internal resistance can experience a reverse voltage that is greater than the cell's remaining internal forward voltage. This results in the reversal of the weak cell's polarity while the current is flowing through the cells[3][4]. This can significantly shortens the life of the affected cell and therefore of the battery. The higher the discharge rate of the battery needs to be, the better matched the cells should be, both in kind of cell and state of charge. In some extreme cases, the reversed cell can begin to emit smoke or catch fire.

In critical applications using Ni-Cad batteries, such as in aircraft, each cell is individually discharged by connecting a load clip across the terminals of each cell, thereby avoiding cell reversal, then charging the cells in series

Common rechargeable battery types:

Graph of mass and volume energy densities of several secondary cells

Nickel-cadmium battery (NiCd):

Created by Waldemar Jungner of Sweden in 1899, based on Thomas Edison's first alkaline battery[citation needed]. Using nickel oxide hydroxide and metallic cadmium as electrodes. Cadmium is a toxic element, and was banned for most uses by the European Union in 2004. Nickel-cadmium batteries have been almost completely superseded by nickel-metal hydride (NiMH) batteries.

Nickel-metal hydride battery (NiMH):

First commercial types were available in 1989.[20] These are now a common consumer and industrial type. The battery has a hydrogen-absorbing alloy for the negative electrode instead of cadmium.

Lithium-ion battery:

The technology behind lithium-ion battery has not yet fully reached maturity. However, the batteries are the type of choice in many consumer electronics and have one of the best energy-to-mass ratios and a very slow loss of charge when not in use.

Lithium-ion polymer battery:

These batteries are light in weight and can be made in any shape desired.

Battery Capacity:

Look for batteries with a higher milliampere hour (mAh) rating. This refers to the amount of electricity delivered at any given moment. Electronic devices can handle a range of mAh without damaging the device. So as the rechargeable batteries begin to lose power, they do no damage to the device. Batteries with a higher mAh may look exactly like a battery with a lower mAh but typically they cost more.

Battery Chargers:

Buy the battery charger that suits your needs. In some instances you can purchase the charger and batteries as a package deal, but if you want your battery charger to maintain your rechargeable batteries properly, you may need to pay more for special features.

Look for a battery charger that recharges a variety of battery sizes. Select a unit that has a reconditioning cycle. This keeps you from overcharging your batteries. Some models do this automatically while others have a switch you must flip to go into reconditioning mode.

Warnings:

Do use the specialized accesory to recharge

The input voltage of any appliance must be in the range of the output of the battery, otherwise it can do harm to the applince

To avoid the decending capacity, the battery must not be put away over 1 year

Away from high temperature, and kept in cool dry place

Package Included:

4 x Batteries

1 x Charger

If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.

If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Before that, please contact our Live Support to inform that.
In that case we will refund you the payment excluding actual shipping fees already incurred.

If the item is defective, please contact DinoDirect Live Support and send an email to us at cs-center@dinodirect.com attached an image or video file clearly showing the defect of the product. And we will give you a response within 24 hours whether we will resend the item or refund the payment to you for compensation.

For customization, please consider carefully before ordering.Because we do not accept return and replacement.

DinoDirect, the largest online store for cool gadgets and colorful household supplies, would like to provide more rewards to our loyal customers. Wholesale price for all the products has been launched. Other promotions on DinoDirect are not to be combined with it.

not sure it works at all, noticed no difference using it and not using it

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john

Bought this item on

04-05-2011

Rechargeable Battery

00:00:00 04-05-2011

On time. On the money
<br/>Just the way it should be.
<br/>Will use again.

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J. McCormack

Bought this item on

03-17-2011

Does the job

00:00:00 03-17-2011

It fit and does the job. I had to wait weeks for it on backorder. When I took the old one out it still smelled strong. I could tell no difference with the new one. Not sure it really needs to be changed monthly.

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Claudio Paccagnella

Bought this item on

03-03-2011

Worked for Liberty Plus

00:00:00 03-03-2011

Had the Liberty Plus Mosquito Magnet for about 5 yrs... and couldn't get it started this year. Had some trouble last year but finally got it going... this year wouldn't fire up. I ordered this new battery, charged it for 24 hours and fired right up first time and been working great for a month. Perfect fix to get Liberty Plus back working.

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D. Chiodo

Bought this item on

02-22-2011

Great batteries

00:00:00 02-22-2011

I just bought these batteries to change out in older solar lights where the batteries just seemed to die out. I could notice right away how much brighter they were than my old batteries. They light up my whole path outside, very nice. They even worked right away and I put them in at night, they did not need to charge up first. I really love this product, I bought 3 packs of them!

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Ross C. Powell

Bought this item on

02-18-2011

Works fine

00:00:00 02-18-2011

it arrived on time and works just fine.
<br/>Very handy gizmo to have when you go to charge the battery annually.

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Christopher Moy

Bought this item on

02-16-2011

Best charger

00:00:00 02-16-2011

I was looking for a charger for a trip, wanted a 1.2 voltage charger. Discovered this charger after some research and ordered it. Was thoroughly pleased with this choice, it fully charges the batteries in about 4 hours.

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William Smitley

Bought this item on

01-12-2011

Nice! Nice!

00:00:00 01-12-2011

I've found this to be an excellent charger, as long as you only need to charge AA batteries. The charge cycle is quite fast, the design is good-looking and functional good.

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Return Policy

• If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
• If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Please contact our Live Support to inform that.
• Please contact Live Chat or click here to learn more return policy.